CN103586310A - Straightener calibration method - Google Patents
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- CN103586310A CN103586310A CN201210286950.6A CN201210286950A CN103586310A CN 103586310 A CN103586310 A CN 103586310A CN 201210286950 A CN201210286950 A CN 201210286950A CN 103586310 A CN103586310 A CN 103586310A
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Abstract
The invention discloses a straightener calibration method. The straightener calibration method comprises a first step of setting a calibration reference surface of roll gaps prior to the calibration of the roll gaps of straightening rolls; a second step of making a roll gap reference surface calibration plate; a third step of placing the roll gap calibration plate in a straightener, adjusting the positions of every straightening roll on two sides of the calibration plate and the calibration plate and pressure of every straightening roll; a fourth step of parameterizing a calibration effect measurement standard; and a fifth step of compensating for deviation at the position of a main oil cylinder. According to the technical scheme, by improving a previous calibration method, selection of the roll gap calibration plate and main oil cylinder zero compensation are added on the basis of the previous calibration method, the roll gaps of the single-roll adjustable type multi-roll straightener are calibrated precisely and rapidly so as to improve the straightening effect, multi-pass straightening caused by head-to-tail warping and unilateral warping in the straightening process of a thick and wide plate is reduced, and straightener roll gap calibration time is saved simultaneously.
Description
Technical field
The present invention relates to slab cold leveling technology, more particularly, relate to a kind of straightener scaling method.
Background technology
Existing roll gap calibration technology is the roll gap calibration plate that utilizes 90mm thick, by hand single roller is positioned over to " 0 " position, by 9 single rollers of cold strong machine, on scaling board, press, until pressure between single roller and scaling board, arrive after certain force value, the physical location of system log (SYSLOG) list roller, realizes the deviation compensation of roll gap and single roller position.
The problem that original calibration technique exists:
1) original scaling method is without the setting of the corresponding roll gap plane of reference, and roll gap is prone to aligning non-standard state, thereby occurs integral inclination in roll gap entrance and exit direction, and effect is demarcated in impact, in steel plates straightening process, be prone to stick up, discount problem.
2) because existing straightener body of roll length is 5 meters, original scaling method is not considered transmission side and the inconsistent roll gap deviation compensation of operation width roll gap problem, easily cause four servo master cylinder position excursions of straightener, affect the leveling effect of wide plate, reality very easily occurs in producing that the monolateral phenomenon that upwarps of wide plate occurs.
3) original scaling method, without demarcating criterion corresponding to effect, cannot be weighed demarcation effect, to adjust in time.
Summary of the invention
Object of the present invention aims to provide a kind of straightener scaling method, solves the various deficiencies that exist in prior art.
According to the present invention, a kind of straightener scaling method is provided, comprise the following steps:
According to one embodiment of the invention, step 1 comprises the following steps: set all smoothing rolls of scaling board top, and outermost two smoothing rolls of below are to zero-bit, remaining smoothing roll remains on negative value position; Horizontal ruler is placed on the horizontal plane that outermost two smoothing rolls of scaling board below form, and usage level instrument detects the horizontal level of two smoothing rolls, and adjusts and make plane that both form in level; By root, adjust the smoothing roll that all the other need to be adjusted, make smoothing roll that need to adjust and the upper surface of outermost two smoothing rolls and the gap of scaling board all be less than 0.02mm.
According to one embodiment of the invention, step 3 comprises the following steps: outermost two smoothing rolls of adjustment and scaling board below are position and the pressure of all smoothing rolls in same level not.
According to one embodiment of the invention, the smoothing roll for position above scaling board, adjusts it downwards, until the pressure of smoothing roll meets default force value.
According to one embodiment of the invention, the smoothing roll for position below scaling board, is adjusted upward, until the pressure of smoothing roll meets default force value.
According to one embodiment of the invention, if inlet pressure and outlet pressure are less than or equal to 500KN, finish to demarcate, roll gap is opened, exit described calibration element; If inlet pressure and outlet pressure are greater than 500KN, four master cylinders are demarcated.
According to one embodiment of the invention, detect the pressure of four master cylinders and compare with average oil cylinder working-pressure; Finely tune position to master cylinder, and what make four master cylinders is all less than 50KN with average oil cylinder pressure differential; Again enter demarcation picture, again deviation compensation is carried out in smoothing roll position, until entrance and outlet pressure value are less than or equal to 500KN.
Adopted technical scheme of the present invention, by improving original scaling method, on original scaling method basis, increased choosing and master cylinder zero compensation of the roll gap plane of reference, realizing the adjustable multi-roll straightening machine roll gap of single roller demarcates accurately and fast, to promote leveling effect, reduce the warpage end to end occurring in Wide and Thick Slab aligning process, the multi-pass aligning that monolateral warpage causes, save the straightener roll gap calibration time simultaneously.
Accompanying drawing explanation
In the present invention, identical Reference numeral represents identical feature all the time, wherein:
Fig. 1 is the flow chart of straightener scaling method of the present invention;
Fig. 2 is straightener scaling board of the present invention and smoothing roll position view.
The specific embodiment
Below in conjunction with drawings and Examples, further illustrate technical scheme of the present invention.
With reference to Fig. 1, straightener scaling method of the present invention mainly comprises five large steps:
Respectively above-mentioned step is elaborated below.
step 1:
1, scaling board precision is controlled:
1) assurance of roll gap plane of reference scaling board precision:
Regularly entrust detection company to carry out horizontal degree measurement, guarantee that the uneven amount of total length is less than 0.1mm; Antirust oil is smeared on scaling board surface.
2) assurance of roll gap calibration plate scaling board precision;
Adopt heat treatment high alloy material; Thickness 90 ± 0.05mm; Regularly entrust detection company to carry out horizontal degree measurement, guarantee that the uneven amount of total length is less than 0.1mm; Antirust oil is smeared on scaling board surface.
2, the setting of the roll gap calibration plane of reference:
Roll gap plane of reference scaling board is placed in to 1#, 5#, 9# roller top; Set 1#, 9# roller in zero-bit, by level meter, detect, adjust single roller position and make scale after horizontal plane, the zero clearing of single roller position coder.5# roller is reclined toward scale lower surface, and 1#, 9# roller position remain unchanged, and the sheet clearance gauge by 0.02 scale carries out scale and smoothing roll highest point clearance measurement, until 1#, 5#, 9# tri-rollers and scaling board gap are all less than 0.02mm.Now, 5# roller position coder zero clearing.The roll gap calibration plane of reference has been set.
The selecting step of the plane of reference is as follows:
1) by straightener operating desk, control panel switches to calibration mode.
2) select manual mode, select cold strong operation screen " operation setpoint " to set picture.
3) manual adjustments 1～9# position, makes 1,2,4,6,8,9 to 0, and other are in negative value.
4) roll gap plane of reference scaling board is placed on the horizontal plane that 1#, 9# roller form, usage level instrument detects the horizontal level of 1#, 9# roller, and manual setting, makes plane that both form in level.
5) click 5# roller and rise, the on-the-spot artificial sheet clearance gauge (minimum scale 0.02mm) that uses, measures the gap between 5# roller and scale.Until table is all less than 0.02mm with calibration element gap on 1#, 5#, tri-rollers of 9#, the setting of the smoothing roll roll gap plane of reference completes.
6) horizontal ruler is exited.
step 3:
With reference to Fig. 2, step 3 comprises the following steps: outermost two smoothing rolls of adjustment and scaling board below are position and the pressure of all smoothing rolls in same level not.Smoothing roll for position above scaling board, adjusts it downwards, until the pressure of smoothing roll meets default force value.Smoothing roll for position below scaling board, is adjusted upward, until the pressure of smoothing roll meets default force value.Concrete steps are as follows:
A. drive roll gap calibration plate into straightener, scaling board is apart from 2 meters of left and right of straightener center line, and each of straightener fore side and transmission side, be symmetric
B. cut off straightening machine body transmission power supply
C. roll gap GAP adjusts to 190mm automatically
D. choosing+MP demarcates picture
E. click Active flicker
F. click ruler in flicker
G. press in GAP roll gap and decline, roll gap is to 90mm
H. computer picture shows " inlet pressure " and " outlet pressure ", when inlet pressure and outlet pressure basicly stable, and transmission side and fore side roll gap are stablized constant.
I. press 3# roller and rise, contact completely to 3# roller with scaling board, single roller pressure sensor detects after corresponding force value, occurs corresponding single roller indicator lamp flicker, click corresponding button.
K. press 7# and rise, contact completely to 7# roller with scaling board, single roller pressure sensor detects after corresponding force value, occurs corresponding single roller indicator lamp flicker, click corresponding button.
O. all single roller indicator lamp flickers after completing
P. still anticipate and click one of them indicator lamp, straightener roll gap automatic-ascending is to 190mm
Q. press again roll gap decline button, roll gap drops to 90mm, computer picture shows " inlet pressure " and " outlet pressure ", when inlet pressure and outlet pressure basicly stable (generally enter, the poor 500KN of being less than of outlet pressure), and when transmission side and fore side gap values between rollers remain unchanged substantially, click flicker button, roll gap opens to the empty state of crossing.
R. by straightener roller-way power transmission, after roll gap calibration plate shifts out, click " ruler out ", exit, demarcate and finish.
The demarcation of other single roller position:
Take off roll gap plane of reference scaling board, by the thick two roll gap calibration plates of 90mm from aligning entrance open into, the on-the-spot relative position of confirming scaling board and replaceable straightening roller system, guarantees that scaling board and roller are that relative position one-tenth is balanced symmetrical.
Manual switching enters demarcation picture, realize in order other single roller pressing to scaling board, wherein four rollers of upper roller system such as 2#, 4#, 6#, 8# are manually lowered, roll surface peak and scaling board upper surface are pressed, when single roller pressure sensor detects after certain pressure value, the zero clearing of single roller position coder, realizes top roll list roller and demarcates.To 3#, 7# two lower rolls, manual crawl raises, and roll surface peak and scaling board following table are pressed.When single roller pressure sensor detects after certain pressure value, the zero clearing of single roller position coder, realizes the demarcation of lower roll 3#, the mono-roller of 7#.
step 4:
1) when the demarcation plane of reference is selected, 1#, 5#, tri-the highest roll surfaces of smoothing roll of 9# and scaling board lower surface be <0.02mm intermittently.
2) during roll gap calibration, inlet pressure deviation △ F1, outlet pressure deviate △ F2 are in ± 10KN during fluctuation, and roll gap presses respond well.
3) when roll gap calibration finishes, four master cylinder pressure P rsCylDY, PrsCylOY, PrsCylOX, PrsCylDX and average pressure difference <50KN.
4) PrsCylDY+PrsCylOY-PrsCylOX-PrsCylDX≤500KN, thinks that roll gap calibration is respond well, can finish to demarcate.
step 5:
(if inlet pressure-outlet pressure) >500KN, PrsCylDY+PrsCylOY-PrsCylOX-PrsCylDX>500KN, need to demarcate four servo master cylinders.The compensation of master cylinder position deviation:
1) open four master cylinder DY(transmission side entrances), OY(fore side entrance), DX(transmission side outlet), the outlet of OX(fore side) L1 pressure sensor detects picture, relatively four master cylinder pressure are big or small, master cylinder position is finely tuned, pressure is greater than the oil cylinder of average pressure, reduce its regulated quantity, realize the position compensation of oil cylinder; The oil cylinder that pressure is less than average pressure strengthens corresponding regulated quantity.Make four master cylinders and average differential pressure all be less than 50KN.
2) again enter demarcation picture, start single roller Zero positioning of 2#, 3#, 4#, 6#, 7#, 8#, until pressure value P rsCylDY+PrsCylOY-PrsCylOX-PrsCylDX>500KN.Demarcate and finish, open roll gap, exit scaling board.
If (inlet pressure-outlet pressure)≤500KN is PrsCylDY+PrsCylOY-PrsCylOX-PrsCylDX≤500KN, demarcate respond wellly, finish to demarcate, roll gap is opened, exit calibration element.
Those of ordinary skill in the art will be appreciated that, above description is only one or more embodiments in the numerous embodiment of the present invention, and not uses limitation of the invention.Any equalization variation, modification for the above embodiment and be equal to the technical schemes such as alternative, as long as connotation scope according to the invention, all will drop in the scope that claims of the present invention protect.
Claims (7)
1. a straightener scaling method, is characterized in that, comprises the following steps:
Step 1, before the roll gap calibration of smoothing roll, sets the demarcation plane of reference of roll gap;
Step 2, makes roll gap plane of reference scaling board;
Step 3, drives roll gap calibration plate into straightener, adjusts each root smoothing roll of described scaling board both sides and the position of described scaling board, and the pressure of each root smoothing roll;
Step 4, will demarcate effect criterion parametrization;
Step 5, the deviation of compensation master cylinder position.
2. straightener scaling method as claimed in claim 1, is characterized in that, described step 1 comprises the following steps:
Set all smoothing rolls of described scaling board top, and outermost two smoothing rolls of below are to zero-bit, remaining smoothing roll remains on negative value position;
Horizontal ruler is placed on the horizontal plane that outermost two smoothing rolls of described scaling board below form, and usage level instrument detects the horizontal level of described two smoothing rolls, and adjusts and make plane that both form in level;
By root, adjust the smoothing roll that all the other need to be adjusted, make the described smoothing roll that need to adjust and the upper surface of described outermost two smoothing rolls and the gap of described scaling board all be less than 0.02mm.
3. straightener scaling method as claimed in claim 2, is characterized in that, described step 3 comprises the following steps:
Outermost two smoothing rolls of adjustment and described scaling board below are position and the pressure of all smoothing rolls in same level not.
4. straightener scaling method as claimed in claim 3, is characterized in that:
Smoothing roll for position above scaling board, adjusts it downwards, until the pressure of described smoothing roll meets default force value.
5. straightener scaling method as claimed in claim 3, is characterized in that:
Smoothing roll for position below scaling board, is adjusted upward, until the pressure of described smoothing roll meets default force value.
6. straightener scaling method as claimed in claim 1, is characterized in that:
If inlet pressure and outlet pressure are less than or equal to 500KN, finish to demarcate, roll gap is opened, exit described calibration element;
If inlet pressure and outlet pressure are greater than 500KN, four master cylinders are demarcated.
7. straightener scaling method as claimed in claim 6, is characterized in that, described step 5 comprises:
Detect the pressure of described four master cylinders and compare with average oil cylinder working-pressure;
Finely tune position to described master cylinder, and what make described four master cylinders is all less than 50KN with described average oil cylinder pressure differential;
Again enter demarcation picture, again deviation compensation is carried out in smoothing roll position, until entrance and outlet pressure value are less than or equal to 500KN.
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| CN201210286950.6A CN103586310B (en) | 2012-08-13 | 2012-08-13 | Straightener calibration method |
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| CN201210286950.6A CN103586310B (en) | 2012-08-13 | 2012-08-13 | Straightener calibration method |
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| CN103586310B CN103586310B (en) | 2015-09-23 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655208A (en) * | 2018-05-29 | 2018-10-16 | 攀钢集团攀枝花钢钒有限公司 | Straightener straightened state investigating method and straightener straightened state TT＆C system |
| CN110788165A (en) * | 2019-10-31 | 2020-02-14 | 中冶陕压重工设备有限公司 | Rapid calibration control system and control method for roll gap of seven-roll straightener |
| CN110966905A (en) * | 2019-12-18 | 2020-04-07 | 太原恒信科达重工成套设备有限公司 | Device and method for positioning and detecting straightening roller of steel pipe straightening machine |
| CN111872133A (en) * | 2020-08-03 | 2020-11-03 | 华峰铝业有限公司 | Metal composite material bonding rolling method for improving defects of air bubbles and leather material deviation |
| CN112044985A (en) * | 2020-08-27 | 2020-12-08 | 中铝河南洛阳铝加工有限公司 | Installation and adjustment process of multi-roll straightener on production site |
| CN112108537A (en) * | 2019-06-22 | 2020-12-22 | 上海梅山钢铁股份有限公司 | Method for quickly calibrating zero position of straightening machine |
| CN112658063A (en) * | 2020-11-19 | 2021-04-16 | 首钢京唐钢铁联合有限责任公司 | Installation precision control method for roller box supporting roller of straightening machine |
| CN113385551A (en) * | 2021-05-27 | 2021-09-14 | 南京钢铁股份有限公司 | Accurate calibration method for roll gap of mechanical pressing straightening machine |
| CN113458182A (en) * | 2020-03-31 | 2021-10-01 | 宝山钢铁股份有限公司 | Roll gap close control zero adjustment method and system for hot rolling flat wire uncoiling area straightener |
| CN114570791A (en) * | 2020-11-30 | 2022-06-03 | 宝山钢铁股份有限公司 | Method and device for improving installation of straightening machine of pickling cold continuous rolling mill set and adjusting roller pressing precision |
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| KR20120020495A (en) * | 2010-08-30 | 2012-03-08 | 현대제철 주식회사 | Hot leveler |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655208B (en) * | 2018-05-29 | 2019-11-19 | 攀钢集团攀枝花钢钒有限公司 | Straightener straightened state investigating method and straightener straightened state TT&C system |
| CN108655208A (en) * | 2018-05-29 | 2018-10-16 | 攀钢集团攀枝花钢钒有限公司 | Straightener straightened state investigating method and straightener straightened state TT＆C system |
| CN112108537A (en) * | 2019-06-22 | 2020-12-22 | 上海梅山钢铁股份有限公司 | Method for quickly calibrating zero position of straightening machine |
| CN110788165A (en) * | 2019-10-31 | 2020-02-14 | 中冶陕压重工设备有限公司 | Rapid calibration control system and control method for roll gap of seven-roll straightener |
| CN110788165B (en) * | 2019-10-31 | 2021-04-27 | 中冶陕压重工设备有限公司 | Rapid calibration control system and control method for roll gap of seven-roll straightener |
| CN110966905A (en) * | 2019-12-18 | 2020-04-07 | 太原恒信科达重工成套设备有限公司 | Device and method for positioning and detecting straightening roller of steel pipe straightening machine |
| CN113458182A (en) * | 2020-03-31 | 2021-10-01 | 宝山钢铁股份有限公司 | Roll gap close control zero adjustment method and system for hot rolling flat wire uncoiling area straightener |
| CN111872133A (en) * | 2020-08-03 | 2020-11-03 | 华峰铝业有限公司 | Metal composite material bonding rolling method for improving defects of air bubbles and leather material deviation |
| CN111872133B (en) * | 2020-08-03 | 2022-03-15 | 华峰铝业有限公司 | Metal composite material bonding rolling method for improving defects of air bubbles and leather material deviation |
| CN112044985A (en) * | 2020-08-27 | 2020-12-08 | 中铝河南洛阳铝加工有限公司 | Installation and adjustment process of multi-roll straightener on production site |
| CN112044985B (en) * | 2020-08-27 | 2022-08-26 | 中铝河南洛阳铝加工有限公司 | Installation and adjustment process of multi-roll straightener on production site |
| CN112658063A (en) * | 2020-11-19 | 2021-04-16 | 首钢京唐钢铁联合有限责任公司 | Installation precision control method for roller box supporting roller of straightening machine |
| CN114570791A (en) * | 2020-11-30 | 2022-06-03 | 宝山钢铁股份有限公司 | Method and device for improving installation of straightening machine of pickling cold continuous rolling mill set and adjusting roller pressing precision |
| CN113385551A (en) * | 2021-05-27 | 2021-09-14 | 南京钢铁股份有限公司 | Accurate calibration method for roll gap of mechanical pressing straightening machine |
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